單項選擇題The ignition quality of diesel fuel is indicated by its()

A.octane number
B.cetane number
C.viscosity in Saybolt seconds
D.air fuel ratio


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題Which of the following conditions may be attributed to a fouled turbocharger compressor inlet screen or filter?()

A.Decreasing scavenge air pressure
B.Increasing exhaust temperatures before the turbine
C.Reduction in engine speed
D.All of the above

2.單項選擇題The rate of wear on a cylinder liner depends on the ()

A.quality of air filtration
B.effectiveness of lubrication
C.type of fuel used
D.all of the above

3.單項選擇題In diesel engineering practice, the term used to express the ignition quality of a particular fuel is()

A.cetane number
B.octane number
C.ignition index number
D.volatility point

4.單項選擇題The cetane number rates fuels for diesel engines according to its ()

A.antiknock characteristics
B.ignition qualities
C.rates of vaporization
D.viscosity

5.單項選擇題Diesel engine starting difficulties due to cold intake air temperatures, can be overcome by using a/an()

A.increase in starting air pressure
B.increase in lube oil viscosity
C.compression expansion device
D.jacket water heater